Whether you already have done some adaptations in Ticket screen in HTML5, and now is using the Responsive UI (RUI, Fiori), you probably noticed that this changes were not reflected there.
When changes are done in Tickets WoC in HTML5 UI using “Adapt” (like hidden fields, change columns, page layouts) these changes are not reflected in RUI, and it is an expected behavior of Cloud for Customer.
It is because the floorplan of RUI is different that the HTML5.
So when you desire to apply change in Tickets WoC in Fiori you must use the tag “&simulateRUI=true”, in the end of the URL of the HTML5 logon screen.
The standard HTML5 URL is something like the link below: